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/*
* Copyright (C) 2004-2011
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.sun.tools.rngom.binary;
import com.sun.tools.rngom.binary.visitor.*;
public class GroupPattern extends BinaryPattern {
GroupPattern(Pattern p1, Pattern p2) {
super(p1.isNullable() && p2.isNullable(),
combineHashCode(GROUP_HASH_CODE, p1.hashCode(), p2.hashCode()),
p1,
p2);
}
@Override
Pattern expand(SchemaPatternBuilder b) {
Pattern ep1 = p1.expand(b);
Pattern ep2 = p2.expand(b);
if (ep1 != p1 || ep2 != p2)
return b.makeGroup(ep1, ep2);
else
return this;
}
@Override
void checkRestrictions(int context, DuplicateAttributeDetector dad, Alphabet alpha) throws RestrictionViolationException {
switch (context) {
case START_CONTEXT:
throw new RestrictionViolationException("start_contains_group");
case DATA_EXCEPT_CONTEXT:
throw new RestrictionViolationException("data_except_contains_group");
}
super.checkRestrictions(context == ELEMENT_REPEAT_CONTEXT
? ELEMENT_REPEAT_GROUP_CONTEXT
: context,
dad,
alpha);
if (context != LIST_CONTEXT
&& !contentTypeGroupable(p1.getContentType(), p2.getContentType()))
throw new RestrictionViolationException("group_string");
}
public void accept(PatternVisitor visitor) {
visitor.visitGroup(p1, p2);
}
public Object apply(PatternFunction f) {
return f.caseGroup(this);
}
}
